Are you sure one transaction of $100 would qualify for $20 credit?
The reason I want to confirm because offer T&C says
“To be eligible for a $20 (CAD) statement credit, ten (10) separate qualifying purchases of at least $10 each (CAD) in a single transaction, after taxes and applicable fees, must be charged to your registered Card, using contactless payment at participating businesses during the offer period, and subsequently posted to your account.”